Each part has a specific function. Before we discuss the control unit and the arithmetic/logic unit in detail, we need to consider data storage and its relationship to the central processing unit. Computers use two types of storage: Primary storage and secondary storage.
With a worldwide box-office gross of over $2.7 billion, Avatar is often proclaimed to be the highest-grossing film, but such claims usually refer to theatrical revenues only and do not take into account home video and television income, which can form a significant portion of a film's earnings.
A 3D version of Titanic, released on April 4, 2012 to commemorate the centennial of the sinking, earned it an additional $343.6 million worldwide, pushing the film's worldwide total to $2.18 billion. It became the second film to gross more than $2 billion worldwide (after Avatar).